Update V8 to r4588
We're using WebKit r58033, as used by
http://src.chromium.org/svn/releases/5.0.387.0/DEPS
This requires http://v8.googlecode.com/svn/trunk@4465 but this version has a
crashing bug for ARM. Instead we use http://v8.googlecode.com/svn/trunk@4588,
which is used by http://src.chromium.org/svn/releases/6.0.399.0/DEPS
Note that a trivial bug fix was required in arm/codegen-arm.cc. This is guarded
with ANDROID. See http://code.google.com/p/v8/issues/detail?id=703
Change-Id: I459647a8286c4f8c7405f0c5581ecbf051a6f1e8
diff --git a/src/vm-state.h b/src/vm-state.h
new file mode 100644
index 0000000..241df4c
--- /dev/null
+++ b/src/vm-state.h
@@ -0,0 +1,75 @@
+// Copyright 2010 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following
+// disclaimer in the documentation and/or other materials provided
+// with the distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef V8_VM_STATE_H_
+#define V8_VM_STATE_H_
+
+namespace v8 {
+namespace internal {
+
+class VMState BASE_EMBEDDED {
+#ifdef ENABLE_VMSTATE_TRACKING
+ public:
+ inline VMState(StateTag state);
+ inline ~VMState();
+
+ StateTag state() { return state_; }
+ void set_external_callback(Address external_callback) {
+ external_callback_ = external_callback;
+ }
+
+ // Used for debug asserts.
+ static bool is_outermost_external() {
+ return current_state_ == NULL;
+ }
+
+ static StateTag current_state() {
+ return current_state_ ? current_state_->state() : EXTERNAL;
+ }
+
+ static Address external_callback() {
+ return current_state_ ? current_state_->external_callback_ : NULL;
+ }
+
+ private:
+ bool disabled_;
+ StateTag state_;
+ VMState* previous_;
+ Address external_callback_;
+
+ // A stack of VM states.
+ static VMState* current_state_;
+#else
+ public:
+ explicit VMState(StateTag state) {}
+#endif
+};
+
+} } // namespace v8::internal
+
+
+#endif // V8_VM_STATE_H_